Installation Guide
TRIM & FASCIA           190, 440, 540 & 2000 SERIES
• Vented Cut-To-Width (CTW) sot provides ventilation of 10 square inches per linear foot from the factory. 
• Exhaust ducts shall terminate not less than 3 ft. in any direction from openings in vented sot. Refer to your local code. 
• When cutting sot panels with a circular saw, orient the texture face down and fully support and brace to reduce vibration.
• Layout and install vented sot in a manner that reduces or eliminates the need to cut through the vents. All sot edges 
must be supported or backed by minimum 2x support. (See diagrams 6b to 6d) 
• If the panels need to be eld-cut to width, cut them 3/8 inch short to leave a 3/16 inch gap on each side. At all edges 
and ends, leave a 3/16 inch space and apply sealant. Nail the panels 6 inches o.c. at the edges and 12 inches o.c. along 
intermediate supports. Always prime and paint all exposed edges. 
• The spokes within the vent may distort slightly during equilibration with the local environment. This condition is temporary 
and the spokes will straighten.
GENERAL REQUIREMENTS (CONTINUED)
INSTALLATION
Vented Sot
Outside edge joining fascia. Position vents away from wall.
1-15/16” +/- 1/4” 
between ends & vents
10 openings per vent each vent 
measures 8” long by 3.5” wide
16 vents per 16’ piece 
spaced 12” o.c.
4” between vents
All vent groups, +/- 1/16” from specied location
3” +/- 1/16” 
between 
vent and 
fascia 
edge
6a
LP SmartSide Sot
3” min. space
48” min. length
Support and fasten 
diagonal edges
• Vented Corner with Square-Cut Ends: (See diagram 6b)
 Run vented sot all the way to the corner and butt the straight-
cut edges of the sot without cutting through the vents. Make 
sure that the vents do not land closer than 3 inches from the end 
or corner. Do not make diagonal cuts through the vents.
• Non-Vented Corner with Square-Cut Ends: (See diagram 6c)
 You may use both vented and non-vented sot in your design. 
For this layout you will use the vented sot to span the straight 
runs, and use the non-vented sot to cover the corners. By using 
non-vented corner pieces that are square-cut you can layout the 
sot for either a symmetrical or non-symmetrical look. All sot 
lengths must span a minimum of 48 inches. 
• Non-Vented Corner with Diagonal-Cut Ends: (See diagram 6d)
 The diagonal joint must be supported by framing and properly 
fastened. 
• If building codes require a certain ratio of sot ventilation that 
requires you to utilize ventilation space at corners, your options 
might be limited. Be sure to follow your local building codes. 
6b
6
6c 6d
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